question about DDR3

if i had a laptop with 256DDR3 memory and i run a game that reqiures 512mb-1024mb would the 126mb with DDR have some advantage over that?

 

Are you talking about graphics or system memory?

For graphics, a 256MB GDDR3 card will have more memory bandwitd than a 512MB DDR2 card.

 

He should be referring to system RAM; no game on the market right now requires 1024MB of vram. However, what stick of ddr3 ram has only 256MB?

 

I think he means he has 256MB of GDDR3 RAM on his graphics card.

 

sorry talking about video card LOL

 

In that case, GDDR3 is "faster" than DDR2. GDDR3 istself isn't faster but it usually runs at higher speed so yeah it's better.

512MB on a DDR2 card is useless.

 

but will it work on any games/apps that have 512-1gb reqiured graphic?

 

well, going off the the requirements like that is a bad idea. The graphics cards recommendation on games is very inaccurate and general. VRAM isn't the most important thing. You're better off asking about the game or app, and telling us what card you're using before buying it. Although it is possible it will refuse to install itself if you have lower than the minimum requirement. I mean, it's pretty hit or miss. However nothing I know of requires such a huge amount of VRAM.

 

from what your saying dosen't that mean a video card with 512mbDDR2 has more advantages than a 256mb DDR3

 

A larger Video RAM helps with larger textures. Your GPU won't have to load things in and out of its RAM constantly. Doom 3 requires a 512Mb card to run at Ultra settings because the textures exceed 500Mb. Still you can get away with a fast 256Mb card but it wil be chugging. RAM says nothing about speed.

Not every GPU core needs or can handle a ton of RAM. A 8400 GS with 512Mb is useless. The GPU itself will be overwhelmed before it will utilize all the RAM. Even midrange cards are still fine with 256Mb. Higher midrange and high end cards have more RAM and can use it.

Most games today are happy with 256Mb. A lot of cards still come with 256Mb and will be fine that way.

 

What game or application are you using that has a requirement for a video card with 1 GB dedicated memory??

Currently, the most powerful consumer desktop video card is the 8800 Ultra, and that has 768 MB of dedicated memory.

If a game has 512 MB - 1 GB in its requirements, it's referring to system RAM, not dedicated video RAM.

 

If you have two identical graphics cards, except 1 has 512 MB DDR2 RAM and the other has 256 MB GDDR3 RAM, the GDDR3 card will almost always outperform the 512 MB DDR2 card.

EDIT: Not to be nitpicky, but graphics cards have GDDR3 RAM, not DDR3 RAM. System memory uses DDR3 RAM.

 

which won't be supported in laptops until nehalem i think

 

I was speaking generically

 

oh, that's fine.
but the tears or anger that welled up in my eyes after reading what you wrote can never be undone!

 

Hahahaha